Knob



FIG. 1 is a perspective view of a knob showing my new design;

FIG. 2 is a side view thereof, the left side view being a mirror image of the right side view shown; and,

FIG. 3 is a front view thereof;

FIG. 4 is a top view thereof, the bottom view being a mirror image of the top view shown; and,

FIG. 5 is a rear view thereof.

The fastener aperture depicted in broken lines in FIG. 5 is shown for illustrative purposes only and forms no part of the claimed subject matter. 

The ornamental design for a knob, as shown and described. 